Play X (Japan) (Proto) Online

X (Japan) (Proto) is an unreleased Super Nintendo Entertainment System game, a prototype that never saw a commercial launch. It was developed by Nintendo, and it feels like a curious artifact from the SNES era, a glimpse into what might have been without the polish of a finished product.

You control a transforming mech, switching between a swift jet and a powerful robot to navigate side-scrolling stages. The main goal is straightforward: blast through waves of enemies and defeat a boss at the end of each level. Signature mechanics include firing a rapid shot in jet form for air mobility and using the heavier robot mode for ground combat and absorbing more damage. The pacing is fast, and the difficulty can feel uneven, with some sections punishingly tight. It feels like playing a rough but energetic demo, full of potential that was never fully realized.